Gas burner



W. O. AMSLER GAS BURNER Filed Augny 1922 /l/ mvENToR l '/3 M 7 ff;

Patented Sept. 22, 1925.

UNITED STATES WALTER O. AMSLER, OF PITTSBURGH, J?ENNSYLVAN'IA.l

GAS BURNER.

Application filed August 7, 1922. Serial No. 580,074.

To all whom. t mag/concern:

Be it known that I, VALTER O. AMsLER,

a citizen of the United States, residing, at

Pittsburgh, in the county of Allegheny and State of Pennsylvania, haveinvented certain new and useful Improvements in Gas Burners, of whichthe following is a specilication.

yThis invention is for an improvement in gas burners for furnaces,particularly glass furnaces or open hearth furnaces, or furnaces of asimilar kind.

In furnaces of this kind, it is necessary to pass a iiame over aconsiderable areaof the interior of the furnace. The more even thedistribution of the ame over the entire area to be covered, the moreefficient is the operation of the furnace. As most 0f these furnaces areof a regenerative or re.- cuperative type, the interior of the burner issubject to very high temperatures.

It has heretofore been the general prac@ tice in furnaces of this kindto provide a series of burner ports along each side of the furnaceplaced as close together as possi ble. A separate burner constructionbehind each port included a. mixing passage, having at its rear asubstantially horizontal partition separating the gas and the` airpassages. Due to the intense heat to which the interior of the burner issubject, this partition as commercially used can have only a verylimited width, and if its width were increased, it could not sustainAits weight under the prevailing high temperature conditions.Consequently, the burner ports can have only a very limited width.

As the burners are necessarily made of 1efractory walls of appreciablethickness, these ports, of necessity, are spaced some distance apart.Thus, the area of theV fur-` nace to be heated is traversed by arelatively large number of strips of flame between which are strata ofair.

The present invention has for its principal object to provide asubstantially horizontal partition ofsimple lconstruction inside theburner, which may be of a much greater width, so that the burner portsmay have a greatly increased width. The number of burners may thus bereduced, and a larger area of the furnace traversed by the flame, manyof the intervening spaces being eliminated.

The invention may be readily understood by reference to the accompanyingdrawings, in which:

Fig. l shows va longitudinal section through a burner embodying myinvention, the burner being shown in connection with a glass` furnace;

Fig. 2 is a transverse section in the plane of line II--II of Fig. l;

Fig. 3 is a similar section in the plane of line III-III of Fig. l;

Fig. 4 is a view similar to Fig. l, showing parts of the burner brokenaway, of a modified construction; and y y Fig. 5 is a partial section inthe plane of line V-V of Fig. 4.

In the drawings, 5 indicates a furnace, such for instance, as a glassfurnace having a top 6, side walls 7, tuckstone 8, and pot 9. In theside walls 7, are the burner ports 10` which `are relatively wide andslightly arched.

Resting on the tuckstone and extending outwardly is a flat bottom walll1, forming the bottom of the burner. The outer end of this wall restson a vertical wall 12. An inclined arched wall 13 forms the top of theburner, this wall extending rearwardly to vertical wall 14 and restingon side walls 15.

Built against ,the vertical wall 12 is refractory wall 16 that increasesrearwardly in width toward the top thereof. Separating the space betweenwalls 14 and 16 is an intermediate vertical wall 17. A vertical airpassage 18 is thus formed between walls 14 and 17, and a vertical gaspassage 19 is formed between walls 16 and 17. yThe horizontallyextending mixer passage is designated as 20. f

In order to provide horizontal `passages opening into the mixer 20, a`horizontally extending wall must be placed above wall 17 to deflect thegas ascending passage 2O toward the yburner port. I-Ieretofore,difiiculty has been encountered in making the wall sufficiently wide andyet be self-sustaining.

The present invention proposes to set a refractory block or blocks onthe top of the wall 17 in such manner that their center of gravity willbe over the vertical wall, while such block will have a forwardlyextending portion projecting beyond wall 17 suiiiciently far to make thedesired partition.

In Figs. 1 and 2, I have shown the burner having a series of blockstherein of a preferred forni," utilizinga cantilever;principle; Thesebloclts', designated 22, liavea relatively wide heavy base portion 22alandareset side by side on the ,top` ofrwall lt. Y k'llheL ,upu per partsof tliebloclrs have forwardly extending lip portions 22b whichoverhang-the top of wall 16, thus providing a horizontal gas passage 23.The .block vmay have va beveled face at 22C. The lip portions of theblocksV` may; have'- regist'ering openings `22,` therein, through whichcooling air or other cooling mediummght be passed. A

Y The blcl'siare s designed'A that" the base portion overbalancesithelipf and the center of gravity of the block is overftlie wall, SO tlliatea'ch bl'oclrf lleep's; itselfvin' position. Consequently, no',V parftof theY partition formed by` the bloclsi is lund'e'r any cen'sider-Aable straiinand the Ypartition couldbe made ofkan'y desired widthFurthermore, apartition so forniedf does'noti need? any specialsupporting measin the sidev walls ofthe burner,` so that' it can .beieasily andj` cheaply installed. The blocks," beingj relatively small,can be readily renewed, or replaced. f In Figs4'`and25, thesameyreference charL acters' have" been usedv toi; designate partscorresponding tof the .parts showns in Fig. theV constructions being'`identical. .Int this construction, however, the wall. 17' ,is extendedhigher, upwardly', and its top'.is'111 clined. Tliehorizontal; partitionis formed by` twoibloclis25,-resting on the top' of wall 171 The blocksare placed: end to' end,'an`d the outer. end of .each bloelr isembedded: in aside wall Vlto preventthem-,from sliding forwardly.. Theseblocks overhang wall 16 a suiiicient distance, but their center ofgrav-ity is such that they have .no tendency togtiltforward. y A n jVarious changes and Inedfications'may be madewithin thecontemplatioirof:my invention, and within the'scope of-'the appendedclaims. Y What I clainris: j

l. AY burner oons'truction' for furnaces comprising anair passage@vertical gas pas# sage, a vertical wall within the burner, and meansresting: onv said` wall and pro-j ecting. in lateral. directionfbeyondsaid wallY across-the top. of theV gas passaget'o form a partitionbetween the air;l andj gas passages inside the burner structure at thepointl of jdnctureof said passages, said meanshaviligf its center off;gravity disposed over the" vertical wall whereby it is held. Kp

21A- burnerl construction for furnaces comprising a` verticali airlpassage', a' vertical gas passage, a wall between the-passages, ahrizontally` extending mixer passage'v into whiclrairr andgas passageslead, `an'dfablock onthe wall having; a' portion thereof proL jectingbeyond the w'a'll`entire`ly acrosslthe gaszparssagebut spaced: abovethegas passage sage: which are separated by a wall, and a mixer passageinto which the air vand gas passages merge, and means for separatingsaid passages atthe point of juncture to btaina flame yof the desiredarea .comprising a' plurality of blocks resting on and entirelysupported by said' wall, saidz blocks having-l portions thereofextendingylaterally andV downwardly beyondv the wall over the gaspassage and forming a partition betweent'h airrandj gas passages and'servingtordirect the gas-flow .from said' passagelaterally anddownwardly into' the 'mixer passage'.

t. A burner constructioni forl furnaces comprising: avertical air.passage andia verticaligasipassage divided by a verticalzwall; aVhorizontally'.` extending burner, passage intoV whichlsaid' verticalpassages lead, andV ai phi@ rality of; substantially. contiguous blocksrestingeon and'. supported bylsaid' vertical wall, said blocks havinghorizontally pro.- jecting portions overhanging said. wall and extendingentirely acrossv the top of the ,gas passage into said; Vhorizontallyk.extending passagexand forming a horizontally extende ing'partitionthereacrosslk Y 5. A" burner construction. for fk rnaces comprisingyavertical air passage and' a ver.- tical gas passage, a; verticalA wallbetween said passages, a horizontally extending burner passageintoswhicli. said air and' gas passages lead, and Ineaiis for providing1a horizontally extending partition in the; rear? most portionzof the'Aburner passagefor; difV reciting thel 4flow ofvgases in theipassagescomprising ai' series ofk substantially contigl uousblocks set on'V the.top of ysaid vertical wall, and' supported thereby, said blocks havingheavy baseportions and? forwardly extendingl lip' portions overhangingthe' wall and projecting entirely overy the gas` pas# sa'geintoitheburnerpassaga'the center of gravity of.' the blocks beiiig in the basepor'- tion thereof; f

6, A. burner construction for furnaces comprising a vertical air passageand aver'- ticalfgas passage, av vertical .wall 'between saidvpassages',` ahorizontally extending burner' passage into which said airand"y gas passages'l lead, and nieans for providing' a horizontallyextendingV4 partition" in: the. rearmosti portion of2 the burner passagefor dif recting the'iow of gases in't'he'passages oom-y prising aserieslof substantially contiguous blocks set .onY the. top,` of saidvverticalA wall", and supported thereby, said blocks':havingx heavy baseportionsrand forwardly exteiiding lip portions overhanging the wall andprojecting entirely over the top of the gas passage into the burnerpassage, the center of gravity of the blocks being in the base portionthereof, the lip portions of the blocks having registering openingstherein for passage of a cooling medium therethrough.

7. In melting tank construction, the com hination of a hearth, a burnerport leadingl into said hearth and downwardly inclined in relationthereto7 a gas-uptake and an airuptake connected at their upper endswith said port, a division wall separating said uptakes, and atongue-block mounted on said wall and extending over the top of thegas-uptake and into said port above the mouth of the gas-uptake.

8. In melting tank construction, the comhination of a hearth, a burnerport leading into said hearth, an aireuptalre and a gasuptale connectedat their upper ends With said port, a division wall separating saiduptakes, and a plurality of canti-lever tongue-blocks mounted in a rowon top of said division Wall and provided with integral tongue portionsof sufficient length to extend over the top of the gas-uptake and intosaid port, the surfaces of said tongue portions being inclined torestrict the gasopening and direct the gas downwardly toward the hearthof the tank.

In testimony whereof I affix my signature.

WALTER O. AMSLER.

